- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 59°23'30"N 2°22'58"W
- Eastings/Northings: 378356, 1056240
- OS Grid: HY783562
- Mapcode Local: GBR N3GX.C2V
- Mapcode Global: XH9S2.96PC
Location and coordinates are for the approximate centre of Trolla Vatn within this administrative area.
Geographic features and populated places may cross administrative borders.